英文關鍵字
academic
back
background
blur
blurred
book
bright
close
cognition
college
color
colored
colorful
concept
design
dictionary
document
education
educational
falling
focus
knowledge
learn
learning
library
literature
macro
motion
page
pages
paper
philosophy
poetry
read
school
selective
shot
slow
story
text
textbook
turning
university
vivid
wisdom
yellow